Different carabiner shapes

A good choice of carabiner shape can increase ergonomics and security for certain uses.

The shape of the carabiner frame has an influence on:

• major axis strength

• load distribution

• gate opening size, and capacity

• strength in certain positions

• ease of handling

Another less obvious effect is the balance of the carabiner itself: for example pear-shaped carabiners rotate more readily, which can result in poor positioning. D-shaped carabiners tend to stay in place better.

D

Positioning of the load in the strongest axis, closest to the spine side of the frame. Suited to simple loads (connection of devices, attachment to the anchor...).